MagickCore 7.1.1
Convert, Edit, Or Compose Bitmap Images
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color-private.h
1/*
2 Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization
3 dedicated to making software imaging solutions freely available.
4
5 You may not use this file except in compliance with the License. You may
6 obtain a copy of the License at
7
8 https://imagemagick.org/script/license.php
9
10 Unless required by applicable law or agreed to in writing, software
11 distributed under the License is distributed on an "AS IS" BASIS,
12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 See the License for the specific language governing permissions and
14 limitations under the License.
15
16 MagickCore private image color methods.
17*/
18#ifndef MAGICKCORE_COLOR_PRIVATE_H
19#define MAGICKCORE_COLOR_PRIVATE_H
20
21#include "MagickCore/image.h"
22#include "MagickCore/image-private.h"
23
24#if defined(__cplusplus) || defined(c_plusplus)
25extern "C" {
26#endif
27
28extern MagickPrivate MagickBooleanType
29 ColorComponentGenesis(void),
30 IsEquivalentAlpha(const Image *,const PixelInfo *,const PixelInfo *),
31 IsEquivalentIntensity(const Image *,const PixelInfo *,const PixelInfo *);
32
33extern MagickPrivate void
34 ColorComponentTerminus(void);
35
36static inline MagickBooleanType GetColorRange(const char *color,
37 PixelInfo *start,PixelInfo *stop,ExceptionInfo *exception)
38{
39 char
40 start_color[MagickPathExtent] = "white",
41 stop_color[MagickPathExtent] = "black";
42
43 MagickBooleanType
44 status;
45
46 if (color == (const char *) NULL)
47 return(MagickFalse);
48 if (*color != '\0')
49 {
50 char
51 *p;
52
53 (void) CopyMagickString(start_color,color,MagickPathExtent);
54 for (p=start_color; (*p != '-') && (*p != '\0'); p++)
55 if (*p == '(')
56 {
57 for (p++; (*p != ')') && (*p != '\0'); p++);
58 if (*p == '\0')
59 break;
60 }
61 if (*p == '-')
62 (void) CopyMagickString(stop_color,p+1,MagickPathExtent);
63 *p='\0';
64 }
65 status=QueryColorCompliance(start_color,AllCompliance,start,exception);
66 if (status == MagickFalse)
67 return(status);
68 return(QueryColorCompliance(stop_color,AllCompliance,stop,exception));
69}
70
71static inline double GetFuzzyColorDistance(const Image *p,const Image *q)
72{
73 double
74 fuzz;
75
76 fuzz=(double) MagickMax(MagickMax(p->fuzz,q->fuzz),(MagickRealType)
77 MagickSQ1_2);
78 return(fuzz*fuzz);
79}
80
81#if defined(__cplusplus) || defined(c_plusplus)
82}
83#endif
84
85#endif